Neo4j

sunny_pelletier · 11-20-2020

Hello! I am currently working on a project that uses Spring Data Neo4j, and I am working on migrating from version 5 to the latest version 6. In the previous version, we used a particular approach with spring data where each tenant had a credential s...

sunny_pelletier · 09-23-2020

Hello internet! Me and my team are trying to write a query where we count the number of information that is possessed by more than a given number of people. In Cypher terms, here's our query MATCH (info:Info) WITH info, size((:Person)-[:HAS_INFO]->(i...

sunny_pelletier · 08-13-2020

Hello, I am working on a modelling problem for a time series requirement. Just to be clear, the time series is a type of information we have to display, but is not our primary use-case. In my use-case, a person is member of a department, and a person...

sunny_pelletier · 05-15-2020

Hello, My company is currently working on a Neo4j model for a large amount of data where query time has to be extremely fast to answer some particular questions. To give a little of context, one of the things our model has to support is to associate ...

sunny_pelletier · 11-24-2020

Thank you for this answer. The issue you sent me is not for my project, but it's indeed a similar issue. I'm not really sure how to manage the multiple driver implementation when using spring, because in your example, you call different repositories,...

sunny_pelletier · 11-23-2020

Thank you for your answer. The reason I am asking this is because my company is in the process of getting the SOC2 certification, and with this certification, we need the database access to be as small as possible per DB user, in a way that we have e...

sunny_pelletier · 09-24-2020

I think a CASE WHEN x THEN y ELSE z END could solve your problem. Can you try this: WITH a, (CASE WHEN size(lista) == 0 THEN listb ELSE lista END) as list RETURN a{.*, List: list}

sunny_pelletier · 09-23-2020

Thank you for your reply. If I try to apply your suggestion, it is indeed a little faster (around 150ms), which still makes me wonder a big number of info (millions of it). I had to edit your query to get what I want out of it, so here's what I have:...

sunny_pelletier · 08-15-2020

Yes, that's exactly what I thought about. But ideally we wouldn't want to return all the metrics for a date range. For example, we would want divide a period in a number x of chunks and perform an average for every chunk. This is what time series dat...

Neo4j

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Spring data Neo4j 6.0 and Multi-Tenancy

Fast count with count store on entity relations

Big data and time series modeling for high performance querying

Is there a maximum number of relationships types you can have?

Re: Spring data Neo4j 6.0 and Multi-Tenancy

Re: Spring data Neo4j 6.0 and Multi-Tenancy

Re: Map function OR returns boolean instead of properties

Re: Fast count with count store on entity relations

Re: Big data and time series modeling for high performance querying